Granted Patent
Utility
US 4,389,635 · App. 06/211,382
Interfacing attachment for remote mechanical fire alarms
Inventor:
Edward Gallagher
Patented Case
View Patent ↗
Granted: Jun 21, 1983
Filed: Nov 28, 1980
Inventor
Edward Gallagher
Assignee (at issue)
ATO BV
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.